Notice of Expiration of Patents
Due to Failure to Pay Maintenance Fee
35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required
maintenance fee and any applicable surcharge are not paid in a patent
requiring such payment, the patent will expire at the end of the 4th, 8th
or 12th anniversary of the grant of the patent depending on the first
maintenance fee which was not paid.
According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.
PATENTS WHICH EXPIRED ON April 4, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,817,210 07/174,198 04/04/89
4,817,213 07/157,887 04/04/89
4,817,214 07/087,293 04/04/89
4,817,229 07/192,215 04/04/89
4,817,235 07/159,979 04/04/89
4,817,242 07/220,676 04/04/89
4,817,247 07/100,334 04/04/89
4,817,248 07/083,776 04/04/89
4,817,259 07/064,390 04/04/89
4,817,260 07/127,802 04/04/89
4,817,264 07/083,066 04/04/89
4,817,268 07/017,899 04/04/89
4,817,270 07/094,082 04/04/89
4,817,273 07/044,873 04/04/89
4,817,275 07/079,236 04/04/89
4,817,276 06/847,302 04/04/89
4,817,279 07/168,632 04/04/89
4,817,282 07/152,456 04/04/89
4,817,283 07/088,177 04/04/89
4,817,289 07/053,026 04/04/89
4,817,293 07/066,485 04/04/89
4,817,297 07/132,872 04/04/89
4,817,298 07/132,871 04/04/89
4,817,303 07/074,651 04/04/89
4,817,319 07/063,235 04/04/89
4,817,335 07/076,366 04/04/89
4,817,337 07/093,756 04/04/89
4,817,352 07/157,232 04/04/89
4,817,366 06/942,986 04/04/89
4,817,375 07/149,369 04/04/89
4,817,379 07/007,363 04/04/89
4,817,381 07/131,877 04/04/89
4,817,382 06/815,447 04/04/89
4,817,385 07/072,220 04/04/89
4,817,390 07/123,964 04/04/89
4,817,391 07/115,108 04/04/89
4,817,395 07/060,535 04/04/89
4,817,396 07/162,675 04/04/89
4,817,402 07/015,031 04/04/89
4,817,405 07/065,599 04/04/89
4,817,411 06/878,314 04/04/89
4,817,415 07/132,179 04/04/89
4,817,421 07/043,408 04/04/89
4,817,427 07/196,508 04/04/89
4,817,434 07/086,588 04/04/89
4,817,444 07/019,599 04/04/89
4,817,445 07/019,526 04/04/89
4,817,446 07/014,770 04/04/89
4,817,462 07/122,561 04/04/89
4,817,472 06/508,989 04/04/89
4,817,473 07/024,500 04/04/89
4,817,475 07/066,113 04/04/89
4,817,495 06/883,223 04/04/89
4,817,522 07/127,576 04/04/89
4,817,533 07/046,464 04/04/89
4,817,542 07/187,849 04/04/89
4,817,545 07/064,393 04/04/89
4,817,549 07/114,840 04/04/89
4,817,550 07/146,102 04/04/89
4,817,552 06/618,386 04/04/89
4,817,565 07/197,175 04/04/89
4,817,573 07/137,585 04/04/89
4,817,576 07/123,523 04/04/89
4,817,577 07/157,374 04/04/89
4,817,581 07/154,269 04/04/89
4,817,583 07/166,197 04/04/89
4,817,588 07/068,931 04/04/89
4,817,593 07/043,061 04/04/89
4,817,595 07/016,719 04/04/89
4,817,604 07/095,120 04/04/89
4,817,610 07/073,632 04/04/89
4,817,611 06/930,748 04/04/89
4,817,621 07/060,742 04/04/89
4,817,624 06/811,684 04/04/89
4,817,636 07/103,295 04/04/89
4,817,644 06/920,025 04/04/89
4,817,673 07/099,648 04/04/89
4,817,682 06/682,745 04/04/89
4,817,685 07/034,529 04/04/89
4,817,689 07/012,760 04/04/89
4,817,690 07/075,814 04/04/89
4,817,691 07/078,800 04/04/89
4,817,695 07/127,845 04/04/89
4,817,702 07/102,114 04/04/89
4,817,711 07/055,412 04/04/89
4,817,712 07/173,248 04/04/89
4,817,723 07/078,484 04/04/89
4,817,731 07/069,286 04/04/89
4,817,733 07/031,664 04/04/89
4,817,738 07/084,213 04/04/89
4,817,740 07/083,520 04/04/89
4,817,753 07/091,029 04/04/89
4,817,755 07/020,965 04/04/89
4,817,760 06/888,822 04/04/89
4,817,765 07/099,632 04/04/89
4,817,779 06/857,713 04/04/89
4,817,782 07/060,478 04/04/89
4,817,785 07/118,382 04/04/89
4,817,810 07/145,293 04/04/89
4,817,811 07/108,173 04/04/89
4,817,818 07/080,339 04/04/89
4,817,829 06/831,645 04/04/89
4,817,834 07/015,535 04/04/89
4,817,843 07/127,928 04/04/89
4,817,846 07/103,171 04/04/89
4,817,852 07/105,587 04/04/89
4,817,856 07/080,065 04/04/89
4,817,857 07/061,766 04/04/89
4,817,859 07/099,603 04/04/89
4,817,865 07/169,551 04/04/89
4,817,888 07/060,319 04/04/89
4,817,896 07/007,580 04/04/89
4,817,900 07/191,537 04/04/89
4,817,906 07/034,279 04/04/89
4,817,909 07/129,791 04/04/89
4,817,911 07/194,442 04/04/89
4,817,912 07/100,601 04/04/89
4,817,918 07/108,650 04/04/89
4,817,919 06/589,110 04/04/89
4,817,925 07/092,039 04/04/89
4,817,932 07/151,024 04/04/89
4,817,934 07/078,254 04/04/89
4,817,937 07/072,054 04/04/89
4,817,939 07/138,152 04/04/89
4,817,947 07/118,247 04/04/89
4,817,961 07/156,464 04/04/89
4,817,962 07/138,667 04/04/89
4,817,990 07/096,723 04/04/89
4,817,993 07/039,134 04/04/89
4,817,996 07/092,067 04/04/89
4,818,000 07/130,549 04/04/89
4,818,003 06/946,601 04/04/89
4,818,010 06/920,833 04/04/89
4,818,011 07/049,706 04/04/89
4,818,015 06/941,026 04/04/89
4,818,016 07/101,679 04/04/89
4,818,026 07/138,940 04/04/89
4,818,028 07/078,645 04/04/89
4,818,038 07/073,490 04/04/89
4,818,047 07/091,632 04/04/89
4,818,048 07/000,788 04/04/89
4,818,068 07/212,932 04/04/89
4,818,069 07/098,645 04/04/89
4,818,077 06/770,204 04/04/89
4,818,102 06/945,158 04/04/89
4,818,107 07/157,504 04/04/89
4,818,111 07/074,524 04/04/89
4,818,113 07/042,152 04/04/89
4,818,115 06/876,872 04/04/89
4,818,127 06/889,415 04/04/89
4,818,134 07/062,839 04/04/89
4,818,152 06/918,209 04/04/89
4,818,159 06/903,927 04/04/89
4,818,164 07/059,094 04/04/89
4,818,175 06/940,941 04/04/89
4,818,179 07/080,368 04/04/89
4,818,191 06/640,556 04/04/89
4,818,203 07/201,769 04/04/89
4,818,207 07/174,159 04/04/89
4,818,219 07/177,448 04/04/89
4,818,225 07/023,716 04/04/89
4,818,252 07/029,535 04/04/89
4,818,253 07/060,357 04/04/89
4,818,255 07/154,043 04/04/89
4,818,258 07/139,984 04/04/89
4,818,260 07/166,504 04/04/89
4,818,264 07/044,396 04/04/89
4,818,267 07/169,624 04/04/89
4,818,268 07/106,960 04/04/89
4,818,279 07/163,119 04/04/89
4,818,286 07/165,663 04/04/89
4,818,292 07/093,074 04/04/89
4,818,294 07/067,213 04/04/89
4,818,297 07/120,132 04/04/89
4,818,300 06/939,318 04/04/89
4,818,306 06/832,351 04/04/89
4,818,313 06/870,360 04/04/89
4,818,328 07/140,234 04/04/89
4,818,332 06/861,629 04/04/89
4,818,336 07/107,893 04/04/89
4,818,338 06/900,759 04/04/89
4,818,339 06/890,616 04/04/89
4,818,344 07/133,930 04/04/89
4,818,348 07/053,723 04/04/89
4,818,352 07/045,479 04/04/89
4,818,353 07/070,426 04/04/89
4,818,356 06/905,333 04/04/89
4,818,361 07/126,438 04/04/89
4,818,368 07/113,587 04/04/89
4,818,373 06/795,581 04/04/89
4,818,389 07/140,049 04/04/89
4,818,392 07/131,947 04/04/89
4,818,399 07/091,095 04/04/89
4,818,409 06/842,466 04/04/89
4,818,412 06/847,081 04/04/89
4,818,424 07/187,759 04/04/89
4,818,426 07/174,735 04/04/89
4,818,436 07/091,684 04/04/89
4,818,443 07/145,601 04/04/89
4,818,449 06/818,499 04/04/89
4,818,458 06/926,625 04/04/89
4,818,459 07/120,246 04/04/89
4,818,462 07/063,838 04/04/89
4,818,467 07/030,615 04/04/89
4,818,478 07/130,034 04/04/89
4,818,483 06/947,427 04/04/89
4,818,484 06/935,116 04/04/89
4,818,485 07/013,471 04/04/89
4,818,487 07/106,019 04/04/89
4,818,488 07/072,899 04/04/89
4,818,494 07/122,481 04/04/89
4,818,495 06/760,572 04/04/89
4,818,496 06/899,141 04/04/89
4,818,497 07/061,779 04/04/89
4,818,498 06/624,706 04/04/89
4,818,502 06/931,190 04/04/89
4,818,505 06/832,150 04/04/89
4,818,506 07/144,804 04/04/89
4,818,511 07/076,222 04/04/89
4,818,517 07/004,714 04/04/89
4,818,520 06/918,885 04/04/89
4,818,525 07/081,471 04/04/89
4,818,530 07/098,173 04/04/89
4,818,531 06/698,669 04/04/89
4,818,545 06/815,464 04/04/89
4,818,550 07/142,183 04/04/89
4,818,556 07/183,402 04/04/89
4,818,561 07/047,200 04/04/89
4,818,574 07/049,388 04/04/89
4,818,579 07/130,383 04/04/89
4,818,584 07/128,027 04/04/89
4,818,586 07/120,195 04/04/89
4,818,588 06/931,863 04/04/89
4,818,594 07/091,840 04/04/89
4,818,599 07/180,150 04/04/89
4,818,607 07/048,531 04/04/89
4,818,609 06/897,638 04/04/89
4,818,611 06/930,803 04/04/89
4,818,631 07/048,619 04/04/89
4,818,633 06/928,455 04/04/89
4,818,635 07/201,355 04/04/89
4,818,636 06/680,367 04/04/89
4,818,637 07/196,527 04/04/89
4,818,639 07/061,326 04/04/89
4,818,653 06/922,332 04/04/89
4,818,657 07/099,668 04/04/89
4,818,672 07/060,058 04/04/89
4,818,676 06/905,449 04/04/89
4,818,689 06/752,397 04/04/89
4,818,698 06/893,619 04/04/89
4,818,720 07/096,241 04/04/89
4,818,729 07/106,815 04/04/89
4,818,734 07/152,518 04/04/89
4,818,735 07/013,433 04/04/89
4,818,738 07/130,491 04/04/89
4,818,742 07/102,125 04/04/89
4,818,752 07/013,298 04/04/89
4,818,753 07/098,499 04/04/89
4,818,760 07/094,594 04/04/89
4,818,764 06/230,195 04/04/89
4,818,783 07/118,311 04/04/89
4,818,794 07/094,766 04/04/89
4,818,796 07/049,236 04/04/89
4,818,800 07/038,386 04/04/89
4,818,818 06/925,774 04/04/89
4,818,820 07/037,543 04/04/89
4,818,832 07/168,615 04/04/89
4,818,837 07/088,610 04/04/89
4,818,840 07/133,145 04/04/89
4,818,842 06/899,010 04/04/89
4,818,845 07/069,229 04/04/89
4,818,849 07/072,549 04/04/89
4,818,861 07/064,573 04/04/89
4,818,862 07/110,856 04/04/89
4,818,863 07/136,141 04/04/89
4,818,870 07/046,927 04/04/89
4,818,872 07/049,736 04/04/89
4,818,874 07/181,201 04/04/89
4,818,875 07/032,038 04/04/89
4,818,890 07/119,710 04/04/89
4,818,892 07/101,171 04/04/89
4,818,920 07/112,614 04/04/89
4,818,937 07/162,750 04/04/89
4,818,958 07/133,703 04/04/89
4,818,963 06/796,505 04/04/89
4,818,979 06/834,756 04/04/89
4,818,983 06/894,014 04/04/89
4,818,989 06/593,792 04/04/89
4,818,990 07/095,152 04/04/89
4,818,991 06/927,851 04/04/89
4,818,995 07/051,519 04/04/89
4,818,999 06/924,472 04/04/89
4,819,019 07/009,349 04/04/89
4,819,027 07/049,143 04/04/89
4,819,030 07/131,995 04/04/89
4,819,033 07/113,514 04/04/89
4,819,036 07/060,869 04/04/89
4,819,040 07/243,208 04/04/89
4,819,043 06/936,604 04/04/89
4,819,046 07/052,923 04/04/89
4,819,054 07/011,932 04/04/89
4,819,059 07/120,592 04/04/89
4,819,061 07/060,271 04/04/89
4,819,073 07/143,661 04/04/89
4,819,080 07/186,904 04/04/89
4,819,091 07/045,967 04/04/89
4,819,103 07/126,633 04/04/89
4,819,108 07/178,884 04/04/89
4,819,114 07/133,689 04/04/89
4,819,117 07/089,218 04/04/89
4,819,131 07/089,530 04/04/89
4,819,133 07/243,159 04/04/89
4,819,136 06/864,608 04/04/89
4,819,147 06/920,904 04/04/89
4,819,156 06/874,316 04/04/89
4,819,157 07/103,639 04/04/89
4,819,172 06/917,593 04/04/89
4,819,185 06/820,762 04/04/89
4,819,191 07/008,039 04/04/89
4,819,194 07/056,892 04/04/89
4,819,198 06/883,657 04/04/89
4,819,203 07/038,704 04/04/89
4,819,214 07/115,085 04/04/89
4,819,219 07/029,993 04/04/89
4,819,222 06/853,913 04/04/89
4,819,229 07/024,412 04/04/89
4,819,233 07/035,802 04/04/89
4,819,234 07/046,082 04/04/89
4,819,243 07/104,896 04/04/89
4,819,244 06/870,450 04/04/89
4,819,251 07/190,913 04/04/89
4,819,257 07/098,568 04/04/89
4,819,270 06/881,632 04/04/89
4,819,271 07/133,719 04/04/89
PATENTS WHICH EXPIRED ON March 30, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,197,150 07/829,436 03/30/93
5,197,162 07/768,846 03/30/93
5,197,164 07/891,820 03/30/93
5,197,178 07/562,510 03/30/93
5,197,182 07/739,830 03/30/93
5,197,205 07/717,668 03/30/93
5,197,209 07/650,609 03/30/93
5,197,214 07/688,159 03/30/93
5,197,221 07/557,593 03/30/93
5,197,222 07/837,637 03/30/93
5,197,225 07/932,665 03/30/93
5,197,228 07/658,178 03/30/93
5,197,230 07/553,727 03/30/93
5,197,231 07/805,125 03/30/93
5,197,233 07/711,220 03/30/93
5,197,239 07/699,963 03/30/93
5,197,240 07/764,446 03/30/93
5,197,243 07/442,642 03/30/93
5,197,245 07/566,612 03/30/93
5,197,248 07/945,154 03/30/93
5,197,249 07/875,209 03/30/93
5,197,253 07/636,489 03/30/93
5,197,263 07/759,488 03/30/93
5,197,266 07/643,325 03/30/93
5,197,267 07/479,673 03/30/93
5,197,272 07/738,739 03/30/93
5,197,276 07/728,712 03/30/93
5,197,277 07/849,335 03/30/93
5,197,285 07/756,332 03/30/93
5,197,290 07/499,023 03/30/93
5,197,299 07/759,719 03/30/93
5,197,300 07/822,019 03/30/93
5,197,301 07/775,482 03/30/93
5,197,315 07/746,222 03/30/93
5,197,318 07/826,146 03/30/93
5,197,323 07/552,862 03/30/93
5,197,324 07/835,695 03/30/93
5,197,327 07/663,162 03/30/93
5,197,336 07/647,225 03/30/93
5,197,338 07/734,378 03/30/93
5,197,341 07/721,855 03/30/93
5,197,346 07/827,754 03/30/93
5,197,354 07/873,585 03/30/93
5,197,355 07/901,474 03/30/93
5,197,358 07/943,636 03/30/93
5,197,362 07/616,963 03/30/93
5,197,371 07/686,864 03/30/93
5,197,378 07/941,728 03/30/93
5,197,380 07/898,021 03/30/93
5,197,384 07/705,532 03/30/93
5,197,385 07/867,158 03/30/93
5,197,388 07/747,014 03/30/93
5,197,391 07/794,882 03/30/93
5,197,402 07/719,415 03/30/93
5,197,403 07/733,723 03/30/93
5,197,405 07/814,412 03/30/93
5,197,407 07/866,425 03/30/93
5,197,408 07/840,396 03/30/93
5,197,409 07/854,722 03/30/93
5,197,410 07/931,633 03/30/93
5,197,411 07/767,833 03/30/93
5,197,421 07/919,741 03/30/93
5,197,423 07/834,208 03/30/93
5,197,431 07/804,661 03/30/93
5,197,449 07/846,944 03/30/93
5,197,451 07/752,449 03/30/93
5,197,454 07/832,032 03/30/93
5,197,457 07/831,071 03/30/93
5,197,468 07/888,870 03/30/93
5,197,472 07/736,473 03/30/93
5,197,480 07/535,336 03/30/93
5,197,485 07/776,825 03/30/93
5,197,487 07/627,887 03/30/93
5,197,492 07/674,923 03/30/93
5,197,493 07/852,915 03/30/93
5,197,500 07/596,202 03/30/93
5,197,506 07/772,555 03/30/93
5,197,511 07/828,144 03/30/93
5,197,522 07/844,859 03/30/93
5,197,529 07/415,572 03/30/93
5,197,542 07/861,299 03/30/93
5,197,548 07/823,712 03/30/93
5,197,551 07/760,882 03/30/93
5,197,552 07/779,243 03/30/93
5,197,554 07/422,885 03/30/93
5,197,557 07/804,404 03/30/93
5,197,559 07/579,156 03/30/93
5,197,560 07/798,726 03/30/93
5,197,565 07/696,573 03/30/93
5,197,566 07/642,975 03/30/93
5,197,568 07/623,760 03/30/93
5,197,570 07/864,762 03/30/93
5,197,577 07/729,597 03/30/93
5,197,579 07/692,593 03/30/93
5,197,589 07/696,682 03/30/93
5,197,595 07/578,745 03/30/93
5,197,603 07/917,307 03/30/93
5,197,615 07/773,623 03/30/93
5,197,619 07/768,210 03/30/93
5,197,622 07/931,223 03/30/93
5,197,624 07/839,939 03/30/93
5,197,625 07/715,901 03/30/93
5,197,627 07/666,828 03/30/93
5,197,632 07/737,206 03/30/93
5,197,633 07/823,124 03/30/93
5,197,636 07/830,387 03/30/93
5,197,637 07/680,749 03/30/93
5,197,652 07/601,518 03/30/93
5,197,659 07/917,159 03/30/93
5,197,663 07/872,545 03/30/93
5,197,678 07/732,062 03/30/93
5,197,681 07/621,136 03/30/93
5,197,686 07/559,070 03/30/93
5,197,689 07/784,774 03/30/93
5,197,697 07/652,849 03/30/93
5,197,698 07/674,199 03/30/93
5,197,701 07/853,077 03/30/93
5,197,706 07/711,898 03/30/93
5,197,707 07/737,381 03/30/93
5,197,713 07/879,290 03/30/93
5,197,728 07/799,213 03/30/93
5,197,729 07/792,826 03/30/93
5,197,730 07/557,339 03/30/93
5,197,732 07/776,613 03/30/93
5,197,735 07/715,844 03/30/93
5,197,740 07/561,773 03/30/93
5,197,742 07/882,795 03/30/93
5,197,746 07/539,924 03/30/93
5,197,751 07/729,035 03/30/93
5,197,755 07/833,365 03/30/93
5,197,756 07/684,664 03/30/93
5,197,774 07/865,963 03/30/93
5,197,778 07/843,059 03/30/93
5,197,780 07/658,108 03/30/93
5,197,782 07/725,982 03/30/93
5,197,786 07/771,596 03/30/93
5,197,800 07/723,468 03/30/93
5,197,801 07/744,494 03/30/93
5,197,810 07/540,491 03/30/93
5,197,817 07/899,536 03/30/93
5,197,818 07/715,910 03/30/93
5,197,821 07/746,313 03/30/93
5,197,827 07/830,662 03/30/93
5,197,828 07/775,761 03/30/93
5,197,829 07/843,395 03/30/93
5,197,833 07/855,054 03/30/93
5,197,836 07/792,825 03/30/93
5,197,840 07/680,083 03/30/93
5,197,844 07/794,316 03/30/93
5,197,849 07/635,193 03/30/93
5,197,855 07/727,258 03/30/93
5,197,860 07/391,557 03/30/93
5,197,864 07/821,203 03/30/93
5,197,866 07/687,797 03/30/93
5,197,871 07/903,763 03/30/93
5,197,872 07/628,953 03/30/93
5,197,879 07/756,326 03/30/93
5,197,880 07/444,760 03/30/93
5,197,881 07/814,507 03/30/93
5,197,883 07/919,169 03/30/93
5,197,885 07/827,316 03/30/93
5,197,888 07/841,120 03/30/93
5,197,902 07/705,653 03/30/93
5,197,903 07/840,801 03/30/93
5,197,905 07/781,754 03/30/93
5,197,908 07/800,092 03/30/93
5,197,911 07/750,583 03/30/93
5,197,919 07/719,518 03/30/93
5,197,921 07/676,551 03/30/93
5,197,922 07/436,189 03/30/93
5,197,923 07/768,381 03/30/93
5,197,925 07/808,910 03/30/93
5,197,929 07/752,635 03/30/93
5,197,935 07/838,485 03/30/93
5,197,936 07/793,124 03/30/93
5,197,937 07/941,858 03/30/93
5,197,941 07/737,670 03/30/93
5,197,944 07/859,666 03/30/93
5,197,947 07/780,991 03/30/93
5,197,948 07/637,592 03/30/93
5,197,949 07/643,739 03/30/93
5,197,953 07/727,013 03/30/93
5,197,956 07/413,952 03/30/93
5,197,964 07/790,490 03/30/93
5,197,966 07/887,735 03/30/93
5,197,980 07/744,329 03/30/93
5,197,983 07/747,595 03/30/93
5,197,984 07/721,078 03/30/93
5,197,989 07/642,713 03/30/93
5,197,991 07/755,714 03/30/93
5,197,993 07/728,915 03/30/93
5,197,994 07/618,073 03/30/93
5,198,000 07/723,484 03/30/93
5,198,001 07/759,029 03/30/93
5,198,002 07/850,478 03/30/93
5,198,004 07/805,087 03/30/93
5,198,010 07/786,079 03/30/93
5,198,011 07/226,608 03/30/93
5,198,013 07/301,419 03/30/93
5,198,020 07/818,011 03/30/93
5,198,022 07/822,251 03/30/93
5,198,024 07/721,522 03/30/93
5,198,025 07/762,371 03/30/93
5,198,026 07/765,410 03/30/93
5,198,032 07/770,854 03/30/93
5,198,035 07/677,072 03/30/93
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5,198,051 07/684,384 03/30/93
5,198,058 07/933,134 03/30/93
5,198,060 07/580,080 03/30/93
5,198,070 07/660,544 03/30/93
5,198,078 07/737,437 03/30/93
5,198,081 07/841,562 03/30/93
5,198,085 07/508,201 03/30/93
5,198,086 07/632,264 03/30/93
5,198,087 07/603,950 03/30/93
5,198,090 07/807,766 03/30/93
5,198,092 07/696,089 03/30/93
5,198,100 07/632,723 03/30/93
5,198,105 07/671,280 03/30/93
5,198,107 07/799,025 03/30/93
5,198,114 07/306,104 03/30/93
5,198,122 07/927,878 03/30/93
5,198,123 07/589,633 03/30/93
5,198,125 07/679,726 03/30/93
5,198,127 07/662,912 03/30/93
5,198,131 07/815,018 03/30/93
5,198,132 07/595,904 03/30/93
5,198,139 07/719,673 03/30/93
5,198,164 07/721,567 03/30/93
5,198,166 07/886,650 03/30/93
5,198,172 07/887,979 03/30/93
5,198,185 07/689,425 03/30/93
5,198,187 07/794,944 03/30/93
5,198,188 07/641,977 03/30/93
5,198,192 07/359,168 03/30/93
5,198,193 07/601,697 03/30/93
5,198,200 07/756,359 03/30/93
5,198,204 07/539,647 03/30/93
5,198,209 07/833,991 03/30/93
5,198,217 07/764,486 03/30/93
5,198,222 07/575,583 03/30/93
5,198,232 07/701,856 03/30/93
5,198,233 07/623,949 03/30/93
5,198,244 07/874,021 03/30/93
5,198,245 07/482,830 03/30/93
5,198,247 07/607,041 03/30/93
5,198,252 07/571,259 03/30/93
5,198,259 07/312,330 03/30/93
5,198,263 07/669,718 03/30/93
5,198,267 07/891,071 03/30/93
5,198,274 07/803,619 03/30/93
5,198,276 07/837,834 03/30/93
5,198,286 07/896,576 03/30/93
5,198,290 07/614,265 03/30/93
5,198,297 07/781,100 03/30/93
5,198,305 07/814,229 03/30/93
5,198,307 07/794,896 03/30/93
5,198,312 07/669,019 03/30/93
5,198,314 07/734,763 03/30/93
5,198,318 07/799,601 03/30/93
5,198,323 07/694,372 03/30/93
5,198,324 07/446,093 03/30/93
5,198,330 07/774,955 03/30/93
5,198,333 07/668,624 03/30/93
5,198,337 07/509,054 03/30/93
5,198,342 07/548,059 03/30/93
5,198,351 07/758,154 03/30/93
5,198,365 07/764,012 03/30/93
5,198,367 07/364,731 03/30/93
5,198,370 07/830,852 03/30/93
5,198,376 07/909,938 03/30/93
5,198,377 07/728,851 03/30/93
5,198,404 07/786,652 03/30/93
5,198,413 07/790,085 03/30/93
5,198,415 07/641,415 03/30/93
5,198,418 07/826,198 03/30/93
5,198,431 07/656,409 03/30/93
5,198,441 07/688,536 03/30/93
5,198,446 07/736,962 03/30/93
5,198,447 07/734,281 03/30/93
5,198,452 07/728,128 03/30/93
5,198,457 07/870,527 03/30/93
5,198,459 07/711,226 03/30/93
5,198,463 07/860,335 03/30/93
5,198,467 07/558,753 03/30/93
5,198,474 07/906,505 03/30/93
5,198,475 07/606,617 03/30/93
5,198,483 07/808,387 03/30/93
5,198,487 07/704,286 03/30/93
5,198,497 07/814,166 03/30/93
5,198,508 07/760,923 03/30/93
5,198,513 07/668,294 03/30/93
5,198,515 07/828,922 03/30/93
5,198,518 07/791,673 03/30/93
5,198,526 07/904,865 03/30/93
5,198,528 07/823,161 03/30/93
5,198,531 07/715,561 03/30/93
5,198,534 07/613,843 03/30/93
5,198,543 07/668,945 03/30/93
5,198,550 07/890,764 03/30/93
5,198,551 07/711,721 03/30/93
5,198,552 07/576,444 03/30/93
5,198,553 07/778,878 03/30/93
5,198,555 07/794,992 03/30/93
5,198,562 07/739,022 03/30/93
5,198,565 07/766,113 03/30/93
5,198,568 07/756,950 03/30/93
5,198,569 07/758,927 03/30/93
5,198,573 07/762,402 03/30/93
5,198,583 07/770,390 03/30/93
5,198,585 07/726,063 03/30/93
5,198,586 07/603,247 03/30/93
5,198,588 07/644,779 03/30/93
5,198,593 07/858,211 03/30/93
5,198,596 07/775,227 03/30/93
5,198,597 07/738,017 03/30/93
5,198,598 07/732,551 03/30/93
5,198,601 07/607,458 03/30/93
5,198,603 07/769,831 03/30/93
5,198,619 07/757,226 03/30/93
5,198,622 07/883,919 03/30/93
5,198,623 07/799,570 03/30/93
5,198,631 07/757,821 03/30/93
5,198,648 07/634,638 03/30/93
5,198,663 07/854,008 03/30/93
5,198,669 07/908,915 03/30/93
5,198,672 07/391,292 03/30/93
5,198,691 07/577,792 03/30/93
5,198,693 07/831,855 03/30/93
5,198,702 07/657,208 03/30/93
5,198,711 07/700,138 03/30/93
5,198,716 07/803,815 03/30/93
5,198,717 07/797,058 03/30/93
5,198,720 07/799,150 03/30/93
5,198,722 07/607,428 03/30/93
5,198,730 07/915,020 03/30/93
5,198,732 07/750,453 03/30/93
5,198,733 07/602,239 03/30/93
5,198,737 07/600,366 03/30/93
5,198,749 07/768,714 03/30/93
5,198,750 07/875,972 03/30/93
5,198,754 07/303,965 03/30/93
5,198,755 07/753,078 03/30/93
5,198,762 07/818,340 03/30/93
5,198,764 07/660,518 03/30/93
5,198,768 07/587,447 03/30/93
5,198,772 07/843,197 03/30/93
5,198,774 07/495,822 03/30/93
5,198,790 07/874,508 03/30/93
5,198,798 07/844,514 03/30/93
5,198,799 07/766,500 03/30/93
5,198,802 07/814,196 03/30/93
5,198,806 07/636,135 03/30/93
5,198,809 07/658,818 03/30/93
5,198,811 07/691,199 03/30/93
5,198,812 07/846,191 03/30/93
5,198,819 07/844,183 03/30/93
5,198,828 07/752,106 03/30/93
5,198,839 07/755,142 03/30/93
5,198,841 07/624,329 03/30/93
5,198,846 07/903,242 03/30/93
5,198,848 07/870,242 03/30/93
5,198,853 07/788,215 03/30/93
5,198,858 07/881,884 03/30/93
5,198,865 07/787,135 03/30/93
5,198,867 07/696,664 03/30/93
5,198,870 07/697,032 03/30/93
5,198,874 07/688,753 03/30/93
5,198,878 07/621,698 03/30/93
5,198,885 07/701,492 03/30/93
5,198,893 07/805,113 03/30/93
5,198,895 07/751,465 03/30/93
5,198,898 07/594,129 03/30/93
5,198,899 07/603,755 03/30/93
5,198,911 07/633,364 03/30/93
5,198,913 07/840,089 03/30/93
5,198,931 07/792,156 03/30/93
5,198,953 07/631,635 03/30/93
5,198,955 07/560,701 03/30/93
5,198,961 07/819,770 03/30/93
5,198,965 07/809,992 03/30/93
5,198,968 07/917,848 03/30/93
5,198,974 07/644,543 03/30/93
5,198,978 07/779,692 03/30/93
5,198,980 07/609,474 03/30/93
5,198,982 07/631,005 03/30/93
5,198,985 07/618,634 03/30/93
5,199,003 07/798,725 03/30/93
5,199,004 07/892,056 03/30/93
5,199,005 07/929,233 03/30/93
5,199,007 07/648,910 03/30/93
5,199,022 07/858,620 03/30/93
5,199,024 07/562,254 03/30/93
5,199,026 07/662,723 03/30/93
5,199,027 07/613,520 03/30/93
5,199,040 07/707,510 03/30/93
5,199,044 07/698,774 03/30/93
5,199,067 07/625,069 03/30/93
5,199,068 07/643,912 03/30/93
5,199,071 07/476,449 03/30/93
5,199,078 07/489,261 03/30/93
5,199,084 07/745,651 03/30/93
5,199,106 07/568,530 03/30/93
PATENTS WHICH EXPIRED ON April 1, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,615,413 08/618,643 04/01/97
5,615,414 08/396,411 04/01/97
5,615,415 08/368,753 04/01/97
5,615,417 08/599,156 04/01/97
5,615,418 08/447,084 04/01/97
5,615,424 08/518,933 04/01/97
5,615,428 08/667,597 04/01/97
5,615,431 08/565,174 04/01/97
5,615,432 08/478,333 04/01/97
5,615,433 08/554,845 04/01/97
5,615,438 08/515,652 04/01/97
5,615,444 08/520,752 04/01/97
5,615,449 08/583,290 04/01/97
5,615,463 08/527,442 04/01/97
5,615,487 08/518,331 04/01/97
5,615,490 08/425,839 04/01/97
5,615,495 08/546,697 04/01/97
5,615,510 08/368,554 04/01/97
5,615,511 08/536,455 04/01/97
5,615,512 08/574,285 04/01/97
5,615,516 08/494,593 04/01/97
5,615,519 08/436,313 04/01/97
5,615,521 08/597,611 04/01/97
5,615,526 08/436,139 04/01/97
5,615,527 08/325,328 04/01/97
5,615,536 08/599,154 04/01/97
5,615,540 08/457,534 04/01/97
5,615,557 08/310,831 04/01/97
5,615,567 08/520,993 04/01/97
5,615,569 08/361,385 04/01/97
5,615,575 08/373,256 04/01/97
5,615,579 08/460,682 04/01/97
5,615,580 08/575,824 04/01/97
5,615,584 08/560,800 04/01/97
5,615,585 08/563,308 04/01/97
5,615,587 08/087,595 04/01/97
5,615,594 08/417,796 04/01/97
5,615,595 08/488,800 04/01/97
5,615,602 08/574,993 04/01/97
5,615,607 08/685,633 04/01/97
5,615,614 08/415,632 04/01/97
5,615,617 08/433,443 04/01/97
5,615,627 08/392,572 04/01/97
5,615,632 08/605,313 04/01/97
5,615,634 08/471,851 04/01/97
5,615,639 08/295,651 04/01/97
5,615,651 08/565,106 04/01/97
5,615,658 08/406,915 04/01/97
5,615,663 08/541,244 04/01/97
5,615,667 08/644,952 04/01/97
5,615,688 08/654,163 04/01/97
5,615,691 08/373,646 04/01/97
5,615,698 08/651,148 04/01/97
5,615,702 08/262,608 04/01/97
5,615,711 08/500,634 04/01/97
5,615,718 08/554,456 04/01/97
5,615,719 08/678,456 04/01/97
5,615,721 08/517,934 04/01/97
5,615,722 08/548,963 04/01/97
5,615,728 08/350,004 04/01/97
5,615,743 08/446,051 04/01/97
5,615,744 08/600,290 04/01/97
5,615,752 08/578,358 04/01/97
5,615,753 08/584,683 04/01/97
5,615,757 08/544,485 04/01/97
5,615,762 08/572,109 04/01/97
5,615,768 08/348,378 04/01/97
5,615,769 08/556,513 04/01/97
5,615,773 08/569,575 04/01/97
5,615,777 08/373,158 04/01/97
5,615,781 08/528,997 04/01/97
5,615,782 08/444,328 04/01/97
5,615,791 08/485,696 04/01/97
5,615,793 08/406,069 04/01/97
5,615,799 08/584,467 04/01/97
5,615,813 08/393,205 04/01/97
5,615,814 08/546,589 04/01/97
5,615,815 08/478,786 04/01/97
5,615,818 08/079,605 04/01/97
5,615,819 08/538,720 04/01/97
5,615,837 08/403,285 04/01/97
5,615,843 08/359,616 04/01/97
5,615,844 08/572,506 04/01/97
5,615,847 08/528,627 04/01/97
5,615,849 08/421,855 04/01/97
5,615,850 08/398,696 04/01/97
5,615,858 08/233,386 04/01/97
5,615,859 08/410,493 04/01/97
5,615,862 08/382,615 04/01/97
5,615,863 08/430,927 04/01/97
5,615,871 08/592,009 04/01/97
5,615,877 08/445,967 04/01/97
5,615,880 08/644,624 04/01/97
5,615,881 08/557,964 04/01/97
5,615,882 08/559,762 04/01/97
5,615,887 08/677,446 04/01/97
5,615,889 08/590,595 04/01/97
5,615,890 08/648,726 04/01/97
5,615,891 08/657,195 04/01/97
5,615,892 08/564,403 04/01/97
5,615,902 08/507,367 04/01/97
5,615,906 08/541,310 04/01/97
5,615,911 08/504,315 04/01/97
5,615,921 08/523,711 04/01/97
5,615,922 08/624,177 04/01/97
5,615,924 08/618,166 04/01/97
5,615,927 08/506,860 04/01/97
5,615,933 08/456,094 04/01/97
5,615,937 08/564,240 04/01/97
5,615,941 08/653,659 04/01/97
5,615,943 08/603,115 04/01/97
5,615,965 08/436,193 04/01/97
5,615,969 08/537,627 04/01/97
5,615,974 08/211,559 04/01/97
5,615,979 08/520,243 04/01/97
5,615,981 08/525,543 04/01/97
5,615,984 08/508,957 04/01/97
5,615,992 08/340,214 04/01/97
5,615,993 08/462,522 04/01/97
5,616,005 08/335,605 04/01/97
5,616,009 07/567,145 04/01/97
5,616,012 08/696,345 04/01/97
5,616,019 08/534,983 04/01/97
5,616,041 08/524,895 04/01/97
5,616,042 08/496,054 04/01/97
5,616,044 08/485,822 04/01/97
5,616,055 08/262,079 04/01/97
5,616,060 08/136,944 04/01/97
5,616,076 08/398,547 04/01/97
5,616,083 08/508,329 04/01/97
5,616,091 08/387,165 04/01/97
5,616,095 08/500,456 04/01/97
5,616,103 08/510,838 04/01/97
5,616,108 08/385,773 04/01/97
5,616,109 08/614,237 04/01/97
5,616,111 08/383,476 04/01/97
5,616,116 08/447,216 04/01/97
5,616,125 08/519,723 04/01/97
5,616,126 08/397,975 04/01/97
5,616,128 08/302,847 04/01/97
5,616,131 08/425,035 04/01/97
5,616,132 08/489,455 04/01/97
5,616,141 08/584,752 04/01/97
5,616,146 08/243,508 04/01/97
5,616,156 08/418,351 04/01/97
5,616,163 08/421,466 04/01/97
5,616,172 08/607,725 04/01/97
5,616,173 08/544,356 04/01/97
5,616,177 08/394,664 04/01/97
5,616,183 08/439,504 04/01/97
5,616,193 08/281,013 04/01/97
5,616,219 08/489,894 04/01/97
5,616,232 08/534,144 04/01/97
5,616,242 08/451,646 04/01/97
5,616,247 08/448,024 04/01/97
5,616,249 08/665,585 04/01/97
5,616,252 08/490,261 04/01/97
5,616,255 08/369,592 04/01/97
5,616,257 08/407,139 04/01/97
5,616,262 08/422,173 04/01/97
5,616,272 08/427,221 04/01/97
5,616,282 08/439,044 04/01/97
5,616,289 08/692,506 04/01/97
5,616,292 08/470,492 04/01/97
5,616,312 08/402,423 04/01/97
5,616,316 08/477,554 04/01/97
5,616,335 08/351,254 04/01/97
5,616,337 08/380,740 04/01/97
5,616,339 08/414,322 04/01/97
5,616,343 08/037,119 04/01/97
5,616,349 08/371,869 04/01/97
5,616,354 08/542,415 04/01/97
5,616,360 08/542,178 04/01/97
5,616,369 08/265,173 04/01/97
5,616,408 08/577,900 04/01/97
5,616,414 08/457,667 04/01/97
5,616,422 08/437,753 04/01/97
5,616,446 08/534,859 04/01/97
5,616,454 08/565,824 04/01/97
5,616,461 07/882,838 04/01/97
5,616,469 08/462,791 04/01/97
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